In accordance with Federal rules and agreements, the National Transportation Safety Board (NTSB) has overlapping jurisdiction with the Coast Guard in respect to conducting safety investigations for major marine accidents.
In this case, the Coast Guard has convened a Marine Board of Investigation and is investigating, however the NTSB was designated as the lead federal agency for the marine casualty to determine the cause of the accident.
Please refer to NTSB’s website on this accident to learn additional information on this matter.
https://www.ntsb.gov/investigations/Pages/DCA24MM031.aspx